xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision 7ae9fb1b7ecbb5d85d07857943f677fd1a559b18)
1  // SPDX-License-Identifier: GPL-2.0-or-later
2  /*
3   */
4  
5  /*
6      Vortex core low level functions.
7  
8   Author: Manuel Jander (mjander@users.sourceforge.cl)
9   These functions are mainly the result of translations made
10   from the original disassembly of the au88x0 binary drivers,
11   written by Aureal before they went down.
12   Many thanks to the Jeff Muizelaar, Kester Maddock, and whoever
13   contributed to the OpenVortex project.
14   The author of this file, put the few available pieces together
15   and translated the rest of the riddle (Mix, Src and connection stuff).
16   Some things are still to be discovered, and their meanings are unclear.
17  
18   Some of these functions aren't intended to be really used, rather
19   to help to understand how does the AU88X0 chips work. Keep them in, because
20   they could be used somewhere in the future.
21  
22   This code hasn't been tested or proof read thoroughly. If you wanna help,
23   take a look at the AU88X0 assembly and check if this matches.
24   Functions tested ok so far are (they show the desired effect
25   at least):
26     vortex_routes(); (1 bug fixed).
27     vortex_adb_addroute();
28     vortex_adb_addroutes();
29     vortex_connect_codecplay();
30     vortex_src_flushbuffers();
31     vortex_adbdma_setmode();  note: still some unknown arguments!
32     vortex_adbdma_startfifo();
33     vortex_adbdma_stopfifo();
34     vortex_fifo_setadbctrl(); note: still some unknown arguments!
35     vortex_mix_setinputvolumebyte();
36     vortex_mix_enableinput();
37     vortex_mixer_addWTD(); (fixed)
38     vortex_connection_adbdma_src_src();
39     vortex_connection_adbdma_src();
40     vortex_src_change_convratio();
41     vortex_src_addWTD(); (fixed)
42  
43   History:
44  
45   01-03-2003 First revision.
46   01-21-2003 Some bug fixes.
47   17-02-2003 many bugfixes after a big versioning mess.
48   18-02-2003 JAAAAAHHHUUUUUU!!!! The mixer works !! I'm just so happy !
49  			 (2 hours later...) I cant believe it! Im really lucky today.
50  			 Now the SRC is working too! Yeah! XMMS works !
51   20-02-2003 First steps into the ALSA world.
52   28-02-2003 As my birthday present, i discovered how the DMA buffer pages really
53              work :-). It was all wrong.
54   12-03-2003 ALSA driver starts working (2 channels).
55   16-03-2003 More srcblock_setupchannel discoveries.
56   12-04-2003 AU8830 playback support. Recording in the works.
57   17-04-2003 vortex_route() and vortex_routes() bug fixes. AU8830 recording
58   			works now, but chipn' dale effect is still there.
59   16-05-2003 SrcSetupChannel cleanup. Moved the Src setup stuff entirely
60              into au88x0_pcm.c .
61   06-06-2003 Buffer shifter bugfix. Mixer volume fix.
62   07-12-2003 A3D routing finally fixed. Believed to be OK.
63   25-03-2004 Many thanks to Claudia, for such valuable bug reports.
64  
65  */
66  
67  #include "au88x0.h"
68  #include "au88x0_a3d.h"
69  #include <linux/delay.h>
70  
71  /*  MIXER (CAsp4Mix.s and CAsp4Mixer.s) */
72  
73  // FIXME: get rid of this.
74  static int mchannels[NR_MIXIN];
75  static int rampchs[NR_MIXIN];
76  
vortex_mixer_en_sr(vortex_t * vortex,int channel)77  static void vortex_mixer_en_sr(vortex_t * vortex, int channel)
78  {
79  	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
80  		hwread(vortex->mmio, VORTEX_MIXER_SR) | (0x1 << channel));
81  }
vortex_mixer_dis_sr(vortex_t * vortex,int channel)82  static void vortex_mixer_dis_sr(vortex_t * vortex, int channel)
83  {
84  	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
85  		hwread(vortex->mmio, VORTEX_MIXER_SR) & ~(0x1 << channel));
86  }
87  
88  #if 0
89  static void
90  vortex_mix_muteinputgain(vortex_t * vortex, unsigned char mix,
91  			 unsigned char channel)
92  {
93  	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_A + ((mix << 5) + channel),
94  		0x80);
95  	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),
96  		0x80);
97  }
98  
99  static int vortex_mix_getvolume(vortex_t * vortex, unsigned char mix)
100  {
101  	int a;
102  	a = hwread(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2)) & 0xff;
103  	//FP2LinearFrac(a);
104  	return (a);
105  }
106  
107  static int
108  vortex_mix_getinputvolume(vortex_t * vortex, unsigned char mix,
109  			  int channel, int *vol)
110  {
111  	int a;
112  	if (!(mchannels[mix] & (1 << channel)))
113  		return 0;
114  	a = hwread(vortex->mmio,
115  		   VORTEX_MIX_INVOL_A + (((mix << 5) + channel) << 2));
116  	/*
117  	   if (rampchs[mix] == 0)
118  	   a = FP2LinearFrac(a);
119  	   else
120  	   a = FP2LinearFracWT(a);
121  	 */
122  	*vol = a;
123  	return (0);
124  }
125  
126  static unsigned int vortex_mix_boost6db(unsigned char vol)
127  {
128  	return (vol + 8);	/* WOW! what a complex function! */
129  }
130  
131  static void vortex_mix_rampvolume(vortex_t * vortex, int mix)
132  {
133  	int ch;
134  	char a;
135  	// This function is intended for ramping down only (see vortex_disableinput()).
136  	for (ch = 0; ch < 0x20; ch++) {
137  		if (((1 << ch) & rampchs[mix]) == 0)
138  			continue;
139  		a = hwread(vortex->mmio,
140  			   VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
141  		if (a > -126) {
142  			a -= 2;
143  			hwwrite(vortex->mmio,
144  				VORTEX_MIX_INVOL_A +
145  				(((mix << 5) + ch) << 2), a);
146  			hwwrite(vortex->mmio,
147  				VORTEX_MIX_INVOL_B +
148  				(((mix << 5) + ch) << 2), a);
149  		} else
150  			vortex_mix_killinput(vortex, mix, ch);
151  	}
152  }
153  
154  static int
155  vortex_mix_getenablebit(vortex_t * vortex, unsigned char mix, int mixin)
156  {
157  	int addr, temp;
158  	if (mixin >= 0)
159  		addr = mixin;
160  	else
161  		addr = mixin + 3;
162  	addr = ((mix << 3) + (addr >> 2)) << 2;
163  	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
164  	return ((temp >> (mixin & 3)) & 1);
165  }
166  #endif
167  static void
vortex_mix_setvolumebyte(vortex_t * vortex,unsigned char mix,unsigned char vol)168  vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
169  			 unsigned char vol)
170  {
171  	int temp;
172  	hwwrite(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2), vol);
173  	if (1) {		/*if (this_10) */
174  		temp = hwread(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2));
175  		if ((temp != 0x80) || (vol == 0x80))
176  			return;
177  	}
178  	hwwrite(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2), vol);
179  }
180  
181  static void
vortex_mix_setinputvolumebyte(vortex_t * vortex,unsigned char mix,int mixin,unsigned char vol)182  vortex_mix_setinputvolumebyte(vortex_t * vortex, unsigned char mix,
183  			      int mixin, unsigned char vol)
184  {
185  	int temp;
186  
187  	hwwrite(vortex->mmio,
188  		VORTEX_MIX_INVOL_A + (((mix << 5) + mixin) << 2), vol);
189  	if (1) {		/* this_10, initialized to 1. */
190  		temp =
191  		    hwread(vortex->mmio,
192  			   VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
193  		if ((temp != 0x80) || (vol == 0x80))
194  			return;
195  	}
196  	hwwrite(vortex->mmio,
197  		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
198  }
199  
200  static void
vortex_mix_setenablebit(vortex_t * vortex,unsigned char mix,int mixin,int en)201  vortex_mix_setenablebit(vortex_t * vortex, unsigned char mix, int mixin, int en)
202  {
203  	int temp, addr;
204  
205  	if (mixin < 0)
206  		addr = (mixin + 3);
207  	else
208  		addr = mixin;
209  	addr = ((mix << 3) + (addr >> 2)) << 2;
210  	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
211  	if (en)
212  		temp |= (1 << (mixin & 3));
213  	else
214  		temp &= ~(1 << (mixin & 3));
215  	/* Mute input. Astatic void crackling? */
216  	hwwrite(vortex->mmio,
217  		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
218  	/* Looks like clear buffer. */
219  	hwwrite(vortex->mmio, VORTEX_MIX_SMP + (mixin << 2), 0x0);
220  	hwwrite(vortex->mmio, VORTEX_MIX_SMP + 4 + (mixin << 2), 0x0);
221  	/* Write enable bit. */
222  	hwwrite(vortex->mmio, VORTEX_MIX_ENIN + addr, temp);
223  }
224  
225  static void
vortex_mix_killinput(vortex_t * vortex,unsigned char mix,int mixin)226  vortex_mix_killinput(vortex_t * vortex, unsigned char mix, int mixin)
227  {
228  	rampchs[mix] &= ~(1 << mixin);
229  	vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);
230  	mchannels[mix] &= ~(1 << mixin);
231  	vortex_mix_setenablebit(vortex, mix, mixin, 0);
232  }
233  
234  static void
vortex_mix_enableinput(vortex_t * vortex,unsigned char mix,int mixin)235  vortex_mix_enableinput(vortex_t * vortex, unsigned char mix, int mixin)
236  {
237  	vortex_mix_killinput(vortex, mix, mixin);
238  	if ((mchannels[mix] & (1 << mixin)) == 0) {
239  		vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);	/*0x80 : mute */
240  		mchannels[mix] |= (1 << mixin);
241  	}
242  	vortex_mix_setenablebit(vortex, mix, mixin, 1);
243  }
244  
245  static void
vortex_mix_disableinput(vortex_t * vortex,unsigned char mix,int channel,int ramp)246  vortex_mix_disableinput(vortex_t * vortex, unsigned char mix, int channel,
247  			int ramp)
248  {
249  	if (ramp) {
250  		rampchs[mix] |= (1 << channel);
251  		// Register callback.
252  		//vortex_mix_startrampvolume(vortex);
253  		vortex_mix_killinput(vortex, mix, channel);
254  	} else
255  		vortex_mix_killinput(vortex, mix, channel);
256  }
257  
258  static int
vortex_mixer_addWTD(vortex_t * vortex,unsigned char mix,unsigned char ch)259  vortex_mixer_addWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
260  {
261  	int temp, lifeboat = 0, prev;
262  
263  	temp = hwread(vortex->mmio, VORTEX_MIXER_SR);
264  	if ((temp & (1 << ch)) == 0) {
265  		hwwrite(vortex->mmio, VORTEX_MIXER_CHNBASE + (ch << 2), mix);
266  		vortex_mixer_en_sr(vortex, ch);
267  		return 1;
268  	}
269  	prev = VORTEX_MIXER_CHNBASE + (ch << 2);
270  	temp = hwread(vortex->mmio, prev);
271  	while (temp & 0x10) {
272  		prev = VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2);
273  		temp = hwread(vortex->mmio, prev);
274  		//printk(KERN_INFO "vortex: mixAddWTD: while addr=%x, val=%x\n", prev, temp);
275  		if ((++lifeboat) > 0xf) {
276  			dev_err(vortex->card->dev,
277  				"vortex_mixer_addWTD: lifeboat overflow\n");
278  			return 0;
279  		}
280  	}
281  	hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
282  	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
283  	return 1;
284  }
285  
286  static int
vortex_mixer_delWTD(vortex_t * vortex,unsigned char mix,unsigned char ch)287  vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
288  {
289  	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
290  	//int esp1f=edi(while)=src, esp10=ch;
291  
292  	eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
293  	if (((1 << ch) & eax) == 0) {
294  		dev_err(vortex->card->dev, "mix ALARM %x\n", eax);
295  		return 0;
296  	}
297  	ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
298  	esp18 = hwread(vortex->mmio, ebp);
299  	if (esp18 & 0x10) {
300  		ebx = (esp18 & 0xf);
301  		if (mix == ebx) {
302  			ebx = VORTEX_MIXER_RTBASE + (mix << 2);
303  			edx = hwread(vortex->mmio, ebx);
304  			//7b60
305  			hwwrite(vortex->mmio, ebp, edx);
306  			hwwrite(vortex->mmio, ebx, 0);
307  		} else {
308  			//7ad3
309  			edx =
310  			    hwread(vortex->mmio,
311  				   VORTEX_MIXER_RTBASE + (ebx << 2));
312  			//printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
313  			while ((edx & 0xf) != mix) {
314  				if ((esi) > 0xf) {
315  					dev_err(vortex->card->dev,
316  						"mixdelWTD: error lifeboat overflow\n");
317  					return 0;
318  				}
319  				esp14 = ebx;
320  				ebx = edx & 0xf;
321  				ebp = ebx << 2;
322  				edx =
323  				    hwread(vortex->mmio,
324  					   VORTEX_MIXER_RTBASE + ebp);
325  				//printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
326  				esi++;
327  			}
328  			//7b30
329  			ebp = ebx << 2;
330  			if (edx & 0x10) {	/* Delete entry in between others */
331  				ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
332  				edx = hwread(vortex->mmio, ebx);
333  				//7b60
334  				hwwrite(vortex->mmio,
335  					VORTEX_MIXER_RTBASE + ebp, edx);
336  				hwwrite(vortex->mmio, ebx, 0);
337  				//printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
338  			} else {	/* Delete last entry */
339  				//7b83
340  				if (esp14 == -1)
341  					hwwrite(vortex->mmio,
342  						VORTEX_MIXER_CHNBASE +
343  						(ch << 2), esp18 & 0xef);
344  				else {
345  					ebx = (0xffffffe0 & edx) | (0xf & ebx);
346  					hwwrite(vortex->mmio,
347  						VORTEX_MIXER_RTBASE +
348  						(esp14 << 2), ebx);
349  					//printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
350  				}
351  				hwwrite(vortex->mmio,
352  					VORTEX_MIXER_RTBASE + ebp, 0);
353  				return 1;
354  			}
355  		}
356  	} else {
357  		//printk(KERN_INFO "removed last mix\n");
358  		//7be0
359  		vortex_mixer_dis_sr(vortex, ch);
360  		hwwrite(vortex->mmio, ebp, 0);
361  	}
362  	return 1;
363  }
364  
vortex_mixer_init(vortex_t * vortex)365  static void vortex_mixer_init(vortex_t * vortex)
366  {
367  	u32 addr;
368  	int x;
369  
370  	// FIXME: get rid of this crap.
371  	memset(mchannels, 0, NR_MIXOUT * sizeof(int));
372  	memset(rampchs, 0, NR_MIXOUT * sizeof(int));
373  
374  	addr = VORTEX_MIX_SMP + 0x17c;
375  	for (x = 0x5f; x >= 0; x--) {
376  		hwwrite(vortex->mmio, addr, 0);
377  		addr -= 4;
378  	}
379  	addr = VORTEX_MIX_ENIN + 0x1fc;
380  	for (x = 0x7f; x >= 0; x--) {
381  		hwwrite(vortex->mmio, addr, 0);
382  		addr -= 4;
383  	}
384  	addr = VORTEX_MIX_SMP + 0x17c;
385  	for (x = 0x5f; x >= 0; x--) {
386  		hwwrite(vortex->mmio, addr, 0);
387  		addr -= 4;
388  	}
389  	addr = VORTEX_MIX_INVOL_A + 0x7fc;
390  	for (x = 0x1ff; x >= 0; x--) {
391  		hwwrite(vortex->mmio, addr, 0x80);
392  		addr -= 4;
393  	}
394  	addr = VORTEX_MIX_VOL_A + 0x3c;
395  	for (x = 0xf; x >= 0; x--) {
396  		hwwrite(vortex->mmio, addr, 0x80);
397  		addr -= 4;
398  	}
399  	addr = VORTEX_MIX_INVOL_B + 0x7fc;
400  	for (x = 0x1ff; x >= 0; x--) {
401  		hwwrite(vortex->mmio, addr, 0x80);
402  		addr -= 4;
403  	}
404  	addr = VORTEX_MIX_VOL_B + 0x3c;
405  	for (x = 0xf; x >= 0; x--) {
406  		hwwrite(vortex->mmio, addr, 0x80);
407  		addr -= 4;
408  	}
409  	addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
410  	for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
411  		hwwrite(vortex->mmio, addr, 0x0);
412  		addr -= 4;
413  	}
414  	hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
415  
416  	/* Set clipping ceiling (this may be all wrong). */
417  	/*
418  	for (x = 0; x < 0x80; x++) {
419  		hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
420  	}
421  	*/
422  	/*
423  	   call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
424  	   Register ISR callback for volume smooth fade out.
425  	   Maybe this avoids clicks when press "stop" ?
426  	 */
427  }
428  
429  /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
430  
vortex_src_en_sr(vortex_t * vortex,int channel)431  static void vortex_src_en_sr(vortex_t * vortex, int channel)
432  {
433  	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
434  		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
435  }
436  
vortex_src_dis_sr(vortex_t * vortex,int channel)437  static void vortex_src_dis_sr(vortex_t * vortex, int channel)
438  {
439  	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
440  		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
441  }
442  
vortex_src_flushbuffers(vortex_t * vortex,unsigned char src)443  static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
444  {
445  	int i;
446  
447  	for (i = 0x1f; i >= 0; i--)
448  		hwwrite(vortex->mmio,
449  			VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
450  	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
451  	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
452  }
453  
vortex_src_cleardrift(vortex_t * vortex,unsigned char src)454  static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
455  {
456  	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
457  	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
458  	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
459  }
460  
461  static void
vortex_src_set_throttlesource(vortex_t * vortex,unsigned char src,int en)462  vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
463  {
464  	int temp;
465  
466  	temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
467  	if (en)
468  		temp |= 1 << src;
469  	else
470  		temp &= ~(1 << src);
471  	hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
472  }
473  
474  static int
vortex_src_persist_convratio(vortex_t * vortex,unsigned char src,int ratio)475  vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
476  {
477  	int temp, lifeboat = 0;
478  
479  	do {
480  		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
481  		temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
482  		if ((++lifeboat) > 0x9) {
483  			dev_err(vortex->card->dev, "Src cvr fail\n");
484  			break;
485  		}
486  	}
487  	while (temp != ratio);
488  	return temp;
489  }
490  
491  #if 0
492  static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
493  {
494  	int temp;
495  
496  	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
497  	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
498  	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
499  	if (temp & 0x200)
500  		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
501  			temp & ~0x200L);
502  }
503  
504  static void
505  vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
506  {
507  	int temp, a;
508  
509  	if ((ratio & 0x10000) && (ratio != 0x10000)) {
510  		if (ratio & 0x3fff)
511  			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
512  		else
513  			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
514  	} else
515  		a = 0xc;
516  	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
517  	if (((temp >> 4) & 0xf) != a)
518  		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
519  			(temp & 0xf) | ((a & 0xf) << 4));
520  
521  	vortex_src_persist_convratio(vortex, src, ratio);
522  }
523  
524  static int
525  vortex_src_checkratio(vortex_t * vortex, unsigned char src,
526  		      unsigned int desired_ratio)
527  {
528  	int hw_ratio, lifeboat = 0;
529  
530  	hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
531  
532  	while (hw_ratio != desired_ratio) {
533  		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
534  
535  		if ((lifeboat++) > 15) {
536  			pr_err( "Vortex: could not set src-%d from %d to %d\n",
537  			       src, hw_ratio, desired_ratio);
538  			break;
539  		}
540  	}
541  
542  	return hw_ratio;
543  }
544  
545  #endif
546  /*
547   Objective: Set samplerate for given SRC module.
548   Arguments:
549  	card:	pointer to vortex_t strcut.
550  	src:	Integer index of the SRC module.
551  	cr:		Current sample rate conversion factor.
552  	b:		unknown 16 bit value.
553  	sweep:	Enable Samplerate fade from cr toward tr flag.
554  	dirplay: 1: playback, 0: recording.
555  	sl:		Slow Lock flag.
556  	tr:		Target samplerate conversion.
557  	thsource: Throttle source flag (no idea what that means).
558  */
vortex_src_setupchannel(vortex_t * card,unsigned char src,unsigned int cr,unsigned int b,int sweep,int d,int dirplay,int sl,unsigned int tr,int thsource)559  static void vortex_src_setupchannel(vortex_t * card, unsigned char src,
560  			unsigned int cr, unsigned int b, int sweep, int d,
561  			int dirplay, int sl, unsigned int tr, int thsource)
562  {
563  	// noplayback: d=2,4,7,0xa,0xb when using first 2 src's.
564  	// c: enables pitch sweep.
565  	// looks like g is c related. Maybe g is a sweep parameter ?
566  	// g = cvr
567  	// dirplay: 0 = recording, 1 = playback
568  	// d = src hw index.
569  
570  	int esi, ebp = 0, esp10;
571  
572  	vortex_src_flushbuffers(card, src);
573  
574  	if (sweep) {
575  		if ((tr & 0x10000) && (tr != 0x10000)) {
576  			tr = 0;
577  			esi = 0x7;
578  		} else {
579  			if ((((short)tr) < 0) && (tr != 0x8000)) {
580  				tr = 0;
581  				esi = 0x8;
582  			} else {
583  				tr = 1;
584  				esi = 0xc;
585  			}
586  		}
587  	} else {
588  		if ((cr & 0x10000) && (cr != 0x10000)) {
589  			tr = 0;	/*ebx = 0 */
590  			esi = 0x11 - ((cr >> 0xe) & 7);
591  			if (cr & 0x3fff)
592  				esi -= 1;
593  			else
594  				esi -= 2;
595  		} else {
596  			tr = 1;
597  			esi = 0xc;
598  		}
599  	}
600  	vortex_src_cleardrift(card, src);
601  	vortex_src_set_throttlesource(card, src, thsource);
602  
603  	if ((dirplay == 0) && (sweep == 0)) {
604  		if (tr)
605  			esp10 = 0xf;
606  		else
607  			esp10 = 0xc;
608  		ebp = 0;
609  	} else {
610  		if (tr)
611  			ebp = 0xf;
612  		else
613  			ebp = 0xc;
614  		esp10 = 0;
615  	}
616  	hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),
617  		(sl << 0x9) | (sweep << 0x8) | ((esi & 0xf) << 4) | d);
618  	/* 0xc0   esi=0xc c=f=0 d=0 */
619  	vortex_src_persist_convratio(card, src, cr);
620  	hwwrite(card->mmio, VORTEX_SRC_U1 + (src << 2), b & 0xffff);
621  	/* 0   b=0 */
622  	hwwrite(card->mmio, VORTEX_SRC_U2 + (src << 2),
623  		(tr << 0x11) | (dirplay << 0x10) | (ebp << 0x8) | esp10);
624  	/* 0x30f00 e=g=1 esp10=0 ebp=f */
625  	//printk(KERN_INFO "vortex: SRC %d, d=0x%x, esi=0x%x, esp10=0x%x, ebp=0x%x\n", src, d, esi, esp10, ebp);
626  }
627  
vortex_srcblock_init(vortex_t * vortex)628  static void vortex_srcblock_init(vortex_t * vortex)
629  {
630  	u32 addr;
631  	int x;
632  	hwwrite(vortex->mmio, VORTEX_SRC_SOURCESIZE, 0x1ff);
633  	/*
634  	   for (x=0; x<0x10; x++) {
635  	   vortex_src_init(&vortex_src[x], x);
636  	   }
637  	 */
638  	//addr = 0xcc3c;
639  	//addr = 0x26c3c;
640  	addr = VORTEX_SRC_RTBASE + 0x3c;
641  	for (x = 0xf; x >= 0; x--) {
642  		hwwrite(vortex->mmio, addr, 0);
643  		addr -= 4;
644  	}
645  	//addr = 0xcc94;
646  	//addr = 0x26c94;
647  	addr = VORTEX_SRC_CHNBASE + 0x54;
648  	for (x = 0x15; x >= 0; x--) {
649  		hwwrite(vortex->mmio, addr, 0);
650  		addr -= 4;
651  	}
652  }
653  
654  static int
vortex_src_addWTD(vortex_t * vortex,unsigned char src,unsigned char ch)655  vortex_src_addWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
656  {
657  	int temp, lifeboat = 0, prev;
658  	// esp13 = src
659  
660  	temp = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
661  	if ((temp & (1 << ch)) == 0) {
662  		hwwrite(vortex->mmio, VORTEX_SRC_CHNBASE + (ch << 2), src);
663  		vortex_src_en_sr(vortex, ch);
664  		return 1;
665  	}
666  	prev = VORTEX_SRC_CHNBASE + (ch << 2);	/*ebp */
667  	temp = hwread(vortex->mmio, prev);
668  	//while (temp & NR_SRC) {
669  	while (temp & 0x10) {
670  		prev = VORTEX_SRC_RTBASE + ((temp & 0xf) << 2);	/*esp12 */
671  		//prev = VORTEX_SRC_RTBASE + ((temp & (NR_SRC-1)) << 2); /*esp12*/
672  		temp = hwread(vortex->mmio, prev);
673  		//printk(KERN_INFO "vortex: srcAddWTD: while addr=%x, val=%x\n", prev, temp);
674  		if ((++lifeboat) > 0xf) {
675  			dev_err(vortex->card->dev,
676  				"vortex_src_addWTD: lifeboat overflow\n");
677  			return 0;
678  		}
679  	}
680  	hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
681  	//hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
682  	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
683  	return 1;
684  }
685  
686  static int
vortex_src_delWTD(vortex_t * vortex,unsigned char src,unsigned char ch)687  vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
688  {
689  	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
690  	//int esp1f=edi(while)=src, esp10=ch;
691  
692  	eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
693  	if (((1 << ch) & eax) == 0) {
694  		dev_err(vortex->card->dev, "src alarm\n");
695  		return 0;
696  	}
697  	ebp = VORTEX_SRC_CHNBASE + (ch << 2);
698  	esp18 = hwread(vortex->mmio, ebp);
699  	if (esp18 & 0x10) {
700  		ebx = (esp18 & 0xf);
701  		if (src == ebx) {
702  			ebx = VORTEX_SRC_RTBASE + (src << 2);
703  			edx = hwread(vortex->mmio, ebx);
704  			//7b60
705  			hwwrite(vortex->mmio, ebp, edx);
706  			hwwrite(vortex->mmio, ebx, 0);
707  		} else {
708  			//7ad3
709  			edx =
710  			    hwread(vortex->mmio,
711  				   VORTEX_SRC_RTBASE + (ebx << 2));
712  			//printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
713  			while ((edx & 0xf) != src) {
714  				if ((esi) > 0xf) {
715  					dev_warn(vortex->card->dev,
716  						 "srcdelWTD: error, lifeboat overflow\n");
717  					return 0;
718  				}
719  				esp14 = ebx;
720  				ebx = edx & 0xf;
721  				ebp = ebx << 2;
722  				edx =
723  				    hwread(vortex->mmio,
724  					   VORTEX_SRC_RTBASE + ebp);
725  				//printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
726  				esi++;
727  			}
728  			//7b30
729  			ebp = ebx << 2;
730  			if (edx & 0x10) {	/* Delete entry in between others */
731  				ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
732  				edx = hwread(vortex->mmio, ebx);
733  				//7b60
734  				hwwrite(vortex->mmio,
735  					VORTEX_SRC_RTBASE + ebp, edx);
736  				hwwrite(vortex->mmio, ebx, 0);
737  				//printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
738  			} else {	/* Delete last entry */
739  				//7b83
740  				if (esp14 == -1)
741  					hwwrite(vortex->mmio,
742  						VORTEX_SRC_CHNBASE +
743  						(ch << 2), esp18 & 0xef);
744  				else {
745  					ebx = (0xffffffe0 & edx) | (0xf & ebx);
746  					hwwrite(vortex->mmio,
747  						VORTEX_SRC_RTBASE +
748  						(esp14 << 2), ebx);
749  					//printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
750  				}
751  				hwwrite(vortex->mmio,
752  					VORTEX_SRC_RTBASE + ebp, 0);
753  				return 1;
754  			}
755  		}
756  	} else {
757  		//7be0
758  		vortex_src_dis_sr(vortex, ch);
759  		hwwrite(vortex->mmio, ebp, 0);
760  	}
761  	return 1;
762  }
763  
764   /*FIFO*/
765  
766  static void
vortex_fifo_clearadbdata(vortex_t * vortex,int fifo,int x)767  vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
768  {
769  	for (x--; x >= 0; x--)
770  		hwwrite(vortex->mmio,
771  			VORTEX_FIFO_ADBDATA +
772  			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
773  }
774  
775  #if 0
776  static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
777  {
778  	vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
779  #ifdef CHIP_AU8820
780  	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
781  		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
782  #else
783  	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
784  		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
785  #endif
786  }
787  #endif
vortex_fifo_setadbvalid(vortex_t * vortex,int fifo,int en)788  static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
789  {
790  	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
791  		(hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
792  		 0xffffffef) | ((1 & en) << 4) | FIFO_U1);
793  }
794  
795  static void
vortex_fifo_setadbctrl(vortex_t * vortex,int fifo,int stereo,int priority,int empty,int valid,int f)796  vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int stereo, int priority,
797  		       int empty, int valid, int f)
798  {
799  	int temp, lifeboat = 0;
800  	//int this_8[NR_ADB] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; /* position */
801  	int this_4 = 0x2;
802  	/* f seems priority related.
803  	 * CAsp4AdbDma::SetPriority is the only place that calls SetAdbCtrl with f set to 1
804  	 * every where else it is set to 0. It seems, however, that CAsp4AdbDma::SetPriority
805  	 * is never called, thus the f related bits remain a mystery for now.
806  	 */
807  	do {
808  		temp = hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
809  		if (lifeboat++ > 0xbb8) {
810  			dev_err(vortex->card->dev,
811  				"vortex_fifo_setadbctrl fail\n");
812  			break;
813  		}
814  	}
815  	while (temp & FIFO_RDONLY);
816  
817  	// AU8830 semes to take some special care about fifo content (data).
818  	// But i'm just to lazy to translate that :)
819  	if (valid) {
820  		if ((temp & FIFO_VALID) == 0) {
821  			//this_8[fifo] = 0;
822  			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);	// this_4
823  #ifdef CHIP_AU8820
824  			temp = (this_4 & 0x1f) << 0xb;
825  #else
826  			temp = (this_4 & 0x3f) << 0xc;
827  #endif
828  			temp = (temp & 0xfffffffd) | ((stereo & 1) << 1);
829  			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
830  			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
831  			temp |= FIFO_U1;
832  			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
833  #ifdef CHIP_AU8820
834  			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
835  #endif
836  #ifdef CHIP_AU8830
837  			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
838  			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
839  #endif
840  #ifdef CHIP_AU8810
841  			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
842  			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
843  #endif
844  		}
845  	} else {
846  		if (temp & FIFO_VALID) {
847  #ifdef CHIP_AU8820
848  			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
849  #endif
850  #ifdef CHIP_AU8830
851  			temp =
852  			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
853  #endif
854  #ifdef CHIP_AU8810
855  			temp =
856  			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
857  #endif
858  		} else
859  			/*if (this_8[fifo]) */
860  			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
861  	}
862  	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2), temp);
863  	hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
864  }
865  
866  #ifndef CHIP_AU8810
vortex_fifo_clearwtdata(vortex_t * vortex,int fifo,int x)867  static void vortex_fifo_clearwtdata(vortex_t * vortex, int fifo, int x)
868  {
869  	if (x < 1)
870  		return;
871  	for (x--; x >= 0; x--)
872  		hwwrite(vortex->mmio,
873  			VORTEX_FIFO_WTDATA +
874  			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
875  }
876  
vortex_fifo_wtinitialize(vortex_t * vortex,int fifo,int j)877  static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j)
878  {
879  	vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
880  #ifdef CHIP_AU8820
881  	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
882  		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
883  #else
884  	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
885  		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
886  #endif
887  }
888  
vortex_fifo_setwtvalid(vortex_t * vortex,int fifo,int en)889  static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en)
890  {
891  	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
892  		(hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2)) &
893  		 0xffffffef) | ((en & 1) << 4) | FIFO_U1);
894  }
895  
896  static void
vortex_fifo_setwtctrl(vortex_t * vortex,int fifo,int ctrl,int priority,int empty,int valid,int f)897  vortex_fifo_setwtctrl(vortex_t * vortex, int fifo, int ctrl, int priority,
898  		      int empty, int valid, int f)
899  {
900  	int temp = 0, lifeboat = 0;
901  	int this_4 = 2;
902  
903  	do {
904  		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
905  		if (lifeboat++ > 0xbb8) {
906  			dev_err(vortex->card->dev,
907  				"vortex_fifo_setwtctrl fail\n");
908  			break;
909  		}
910  	}
911  	while (temp & FIFO_RDONLY);
912  
913  	if (valid) {
914  		if ((temp & FIFO_VALID) == 0) {
915  			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
916  #ifdef CHIP_AU8820
917  			temp = (this_4 & 0x1f) << 0xb;
918  #else
919  			temp = (this_4 & 0x3f) << 0xc;
920  #endif
921  			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
922  			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
923  			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
924  			temp |= FIFO_U1;
925  			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
926  #ifdef CHIP_AU8820
927  			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
928  #endif
929  #ifdef CHIP_AU8830
930  			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
931  			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
932  #endif
933  #ifdef CHIP_AU8810
934  			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
935  			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
936  #endif
937  		}
938  	} else {
939  		if (temp & FIFO_VALID) {
940  #ifdef CHIP_AU8820
941  			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
942  #endif
943  #ifdef CHIP_AU8830
944  			temp =
945  			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
946  #endif
947  #ifdef CHIP_AU8810
948  			temp =
949  			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
950  #endif
951  		} else
952  			/*if (this_8[fifo]) */
953  			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
954  	}
955  	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
956  	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
957  
958  /*
959      do {
960  		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
961  		if (lifeboat++ > 0xbb8) {
962  			pr_err( "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
963  			break;
964  		}
965      } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
966  
967  
968  	if (valid) {
969  		if (temp & FIFO_VALID) {
970  			temp = 0x40000;
971  			//temp |= 0x08000000;
972  			//temp |= 0x10000000;
973  			//temp |= 0x04000000;
974  			//temp |= 0x00400000;
975  			temp |= 0x1c400000;
976  			temp &= 0xFFFFFFF3;
977  			temp &= 0xFFFFFFEF;
978  			temp |= (valid & 1) << 4;
979  			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
980  			return;
981  		} else {
982  			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
983  			return;
984  		}
985  	} else {
986  		temp &= 0xffffffef;
987  		temp |= 0x08000000;
988  		temp |= 0x10000000;
989  		temp |= 0x04000000;
990  		temp |= 0x00400000;
991  		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
992  		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
993  		//((temp >> 6) & 0x3f)
994  
995  		priority = 0;
996  		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
997  			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
998  		valid = 0xfb;
999  		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1000  		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1001  		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1002  		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1003  		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1004  		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1005  	}
1006  
1007  	*/
1008  
1009  	/*
1010  	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1011  	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1012  	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1013  	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1014  	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1015  	   #ifdef FIFO_BITS
1016  	   temp = temp | FIFO_BITS | 40000;
1017  	   #endif
1018  	   // 0x1c440010, 0x1c400000
1019  	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1020  	 */
1021  }
1022  
1023  #endif
vortex_fifo_init(vortex_t * vortex)1024  static void vortex_fifo_init(vortex_t * vortex)
1025  {
1026  	int x;
1027  	u32 addr;
1028  
1029  	/* ADB DMA channels fifos. */
1030  	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1031  	for (x = NR_ADB - 1; x >= 0; x--) {
1032  		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1033  		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1034  			dev_err(vortex->card->dev, "bad adb fifo reset!\n");
1035  		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1036  		addr -= 4;
1037  	}
1038  
1039  #ifndef CHIP_AU8810
1040  	/* WT DMA channels fifos. */
1041  	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1042  	for (x = NR_WT - 1; x >= 0; x--) {
1043  		hwwrite(vortex->mmio, addr, FIFO_U0);
1044  		if (hwread(vortex->mmio, addr) != FIFO_U0)
1045  			dev_err(vortex->card->dev,
1046  				"bad wt fifo reset (0x%08x, 0x%08x)!\n",
1047  				addr, hwread(vortex->mmio, addr));
1048  		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1049  		addr -= 4;
1050  	}
1051  #endif
1052  	/* trigger... */
1053  #ifdef CHIP_AU8820
1054  	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1055  #else
1056  #ifdef CHIP_AU8830
1057  	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1058  	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1059  #endif
1060  	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1061  #endif
1062  }
1063  
1064  /* ADBDMA */
1065  
vortex_adbdma_init(vortex_t * vortex)1066  static void vortex_adbdma_init(vortex_t * vortex)
1067  {
1068  }
1069  
vortex_adbdma_setfirstbuffer(vortex_t * vortex,int adbdma)1070  static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1071  {
1072  	stream_t *dma = &vortex->dma_adb[adbdma];
1073  
1074  	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1075  		dma->dma_ctrl);
1076  }
1077  
vortex_adbdma_setstartbuffer(vortex_t * vortex,int adbdma,int sb)1078  static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1079  {
1080  	stream_t *dma = &vortex->dma_adb[adbdma];
1081  	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1082  	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1083  		sb << ((0xf - (adbdma & 0xf)) * 2));
1084  	dma->period_real = dma->period_virt = sb;
1085  }
1086  
1087  static void
vortex_adbdma_setbuffers(vortex_t * vortex,int adbdma,int psize,int count)1088  vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1089  			 int psize, int count)
1090  {
1091  	stream_t *dma = &vortex->dma_adb[adbdma];
1092  
1093  	dma->period_bytes = psize;
1094  	dma->nr_periods = count;
1095  
1096  	dma->cfg0 = 0;
1097  	dma->cfg1 = 0;
1098  	switch (count) {
1099  		/* Four or more pages */
1100  	default:
1101  	case 4:
1102  		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1103  		hwwrite(vortex->mmio,
1104  			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1105  			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1106  		fallthrough;
1107  		/* 3 pages */
1108  	case 3:
1109  		dma->cfg0 |= 0x12000000;
1110  		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1111  		hwwrite(vortex->mmio,
1112  			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1113  			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1114  		fallthrough;
1115  		/* 2 pages */
1116  	case 2:
1117  		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1118  		hwwrite(vortex->mmio,
1119  			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1120  			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1121  		fallthrough;
1122  		/* 1 page */
1123  	case 1:
1124  		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1125  		hwwrite(vortex->mmio,
1126  			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1127  			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1128  		break;
1129  	}
1130  	/*
1131  	pr_debug( "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1132  	       dma->cfg0, dma->cfg1);
1133  	*/
1134  	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1135  	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1136  
1137  	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1138  	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1139  }
1140  
1141  static void
vortex_adbdma_setmode(vortex_t * vortex,int adbdma,int ie,int dir,int fmt,int stereo,u32 offset)1142  vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1143  		      int fmt, int stereo, u32 offset)
1144  {
1145  	stream_t *dma = &vortex->dma_adb[adbdma];
1146  
1147  	dma->dma_unknown = stereo;
1148  	dma->dma_ctrl =
1149  	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1150  	/* Enable PCMOUT interrupts. */
1151  	dma->dma_ctrl =
1152  	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1153  
1154  	dma->dma_ctrl =
1155  	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1156  	dma->dma_ctrl =
1157  	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1158  
1159  	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1160  		dma->dma_ctrl);
1161  	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1162  }
1163  
vortex_adbdma_bufshift(vortex_t * vortex,int adbdma)1164  static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1165  {
1166  	stream_t *dma = &vortex->dma_adb[adbdma];
1167  	int page, p, pp, delta, i;
1168  
1169  	page =
1170  	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1171  	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1172  	if (dma->nr_periods >= 4)
1173  		delta = (page - dma->period_real) & 3;
1174  	else {
1175  		delta = (page - dma->period_real);
1176  		if (delta < 0)
1177  			delta += dma->nr_periods;
1178  	}
1179  	if (delta == 0)
1180  		return 0;
1181  
1182  	/* refresh hw page table */
1183  	if (dma->nr_periods > 4) {
1184  		for (i = 0; i < delta; i++) {
1185  			/* p: audio buffer page index */
1186  			p = dma->period_virt + i + 4;
1187  			if (p >= dma->nr_periods)
1188  				p -= dma->nr_periods;
1189  			/* pp: hardware DMA page index. */
1190  			pp = dma->period_real + i;
1191  			if (pp >= 4)
1192  				pp -= 4;
1193  			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1194  			hwwrite(vortex->mmio,
1195  				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1196  				snd_pcm_sgbuf_get_addr(dma->substream,
1197  				dma->period_bytes * p));
1198  			/* Force write thru cache. */
1199  			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1200  			       (((adbdma << 2) + pp) << 2));
1201  		}
1202  	}
1203  	dma->period_virt += delta;
1204  	dma->period_real = page;
1205  	if (dma->period_virt >= dma->nr_periods)
1206  		dma->period_virt -= dma->nr_periods;
1207  	if (delta != 1)
1208  		dev_info(vortex->card->dev,
1209  			 "%d virt=%d, real=%d, delta=%d\n",
1210  			 adbdma, dma->period_virt, dma->period_real, delta);
1211  
1212  	return delta;
1213  }
1214  
1215  
vortex_adbdma_resetup(vortex_t * vortex,int adbdma)1216  static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1217  	stream_t *dma = &vortex->dma_adb[adbdma];
1218  	int p, pp, i;
1219  
1220  	/* refresh hw page table */
1221  	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1222  		/* p: audio buffer page index */
1223  		p = dma->period_virt + i;
1224  		if (p >= dma->nr_periods)
1225  			p -= dma->nr_periods;
1226  		/* pp: hardware DMA page index. */
1227  		pp = dma->period_real + i;
1228  		if (dma->nr_periods < 4) {
1229  			if (pp >= dma->nr_periods)
1230  				pp -= dma->nr_periods;
1231  		}
1232  		else {
1233  			if (pp >= 4)
1234  				pp -= 4;
1235  		}
1236  		hwwrite(vortex->mmio,
1237  			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1238  			snd_pcm_sgbuf_get_addr(dma->substream,
1239  					       dma->period_bytes * p));
1240  		/* Force write thru cache. */
1241  		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1242  	}
1243  }
1244  
vortex_adbdma_getlinearpos(vortex_t * vortex,int adbdma)1245  static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1246  {
1247  	stream_t *dma = &vortex->dma_adb[adbdma];
1248  	int temp, page, delta;
1249  
1250  	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1251  	page = (temp & ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1252  	if (dma->nr_periods >= 4)
1253  		delta = (page - dma->period_real) & 3;
1254  	else {
1255  		delta = (page - dma->period_real);
1256  		if (delta < 0)
1257  			delta += dma->nr_periods;
1258  	}
1259  	return (dma->period_virt + delta) * dma->period_bytes
1260  		+ (temp & (dma->period_bytes - 1));
1261  }
1262  
vortex_adbdma_startfifo(vortex_t * vortex,int adbdma)1263  static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1264  {
1265  	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1266  	stream_t *dma = &vortex->dma_adb[adbdma];
1267  
1268  	switch (dma->fifo_status) {
1269  	case FIFO_START:
1270  		vortex_fifo_setadbvalid(vortex, adbdma,
1271  					dma->fifo_enabled ? 1 : 0);
1272  		break;
1273  	case FIFO_STOP:
1274  		this_8 = 1;
1275  		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1276  			dma->dma_ctrl);
1277  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1278  				       this_4, this_8,
1279  				       dma->fifo_enabled ? 1 : 0, 0);
1280  		break;
1281  	case FIFO_PAUSE:
1282  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1283  				       this_4, this_8,
1284  				       dma->fifo_enabled ? 1 : 0, 0);
1285  		break;
1286  	}
1287  	dma->fifo_status = FIFO_START;
1288  }
1289  
vortex_adbdma_resumefifo(vortex_t * vortex,int adbdma)1290  static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1291  {
1292  	stream_t *dma = &vortex->dma_adb[adbdma];
1293  
1294  	int this_8 = 1, this_4 = 0;
1295  	switch (dma->fifo_status) {
1296  	case FIFO_STOP:
1297  		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1298  			dma->dma_ctrl);
1299  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1300  				       this_4, this_8,
1301  				       dma->fifo_enabled ? 1 : 0, 0);
1302  		break;
1303  	case FIFO_PAUSE:
1304  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1305  				       this_4, this_8,
1306  				       dma->fifo_enabled ? 1 : 0, 0);
1307  		break;
1308  	}
1309  	dma->fifo_status = FIFO_START;
1310  }
1311  
vortex_adbdma_pausefifo(vortex_t * vortex,int adbdma)1312  static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1313  {
1314  	stream_t *dma = &vortex->dma_adb[adbdma];
1315  
1316  	int this_8 = 0, this_4 = 0;
1317  	switch (dma->fifo_status) {
1318  	case FIFO_START:
1319  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1320  				       this_4, this_8, 0, 0);
1321  		break;
1322  	case FIFO_STOP:
1323  		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1324  			dma->dma_ctrl);
1325  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1326  				       this_4, this_8, 0, 0);
1327  		break;
1328  	}
1329  	dma->fifo_status = FIFO_PAUSE;
1330  }
1331  
vortex_adbdma_stopfifo(vortex_t * vortex,int adbdma)1332  static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1333  {
1334  	stream_t *dma = &vortex->dma_adb[adbdma];
1335  
1336  	int this_4 = 0, this_8 = 0;
1337  	if (dma->fifo_status == FIFO_START)
1338  		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1339  				       this_4, this_8, 0, 0);
1340  	else if (dma->fifo_status == FIFO_STOP)
1341  		return;
1342  	dma->fifo_status = FIFO_STOP;
1343  	dma->fifo_enabled = 0;
1344  }
1345  
1346  /* WTDMA */
1347  
1348  #ifndef CHIP_AU8810
vortex_wtdma_setfirstbuffer(vortex_t * vortex,int wtdma)1349  static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1350  {
1351  	//int this_7c=dma_ctrl;
1352  	stream_t *dma = &vortex->dma_wt[wtdma];
1353  
1354  	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1355  }
1356  
vortex_wtdma_setstartbuffer(vortex_t * vortex,int wtdma,int sb)1357  static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1358  {
1359  	stream_t *dma = &vortex->dma_wt[wtdma];
1360  	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1361  	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1362  		sb << ((0xf - (wtdma & 0xf)) * 2));
1363  	dma->period_real = dma->period_virt = sb;
1364  }
1365  
1366  static void
vortex_wtdma_setbuffers(vortex_t * vortex,int wtdma,int psize,int count)1367  vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1368  			int psize, int count)
1369  {
1370  	stream_t *dma = &vortex->dma_wt[wtdma];
1371  
1372  	dma->period_bytes = psize;
1373  	dma->nr_periods = count;
1374  
1375  	dma->cfg0 = 0;
1376  	dma->cfg1 = 0;
1377  	switch (count) {
1378  		/* Four or more pages */
1379  	default:
1380  	case 4:
1381  		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1382  		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1383  			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1384  		fallthrough;
1385  		/* 3 pages */
1386  	case 3:
1387  		dma->cfg0 |= 0x12000000;
1388  		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1389  		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1390  			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1391  		fallthrough;
1392  		/* 2 pages */
1393  	case 2:
1394  		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1395  		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1396  			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1397  		fallthrough;
1398  		/* 1 page */
1399  	case 1:
1400  		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1401  		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1402  			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1403  		break;
1404  	}
1405  	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1406  	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1407  
1408  	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1409  	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1410  }
1411  
1412  static void
vortex_wtdma_setmode(vortex_t * vortex,int wtdma,int ie,int fmt,int d,u32 offset)1413  vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1414  		     /*int e, */ u32 offset)
1415  {
1416  	stream_t *dma = &vortex->dma_wt[wtdma];
1417  
1418  	//dma->this_08 = e;
1419  	dma->dma_unknown = d;
1420  	dma->dma_ctrl = 0;
1421  	dma->dma_ctrl =
1422  	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1423  	/* PCMOUT interrupt */
1424  	dma->dma_ctrl =
1425  	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1426  	/* Always playback. */
1427  	dma->dma_ctrl |= (1 << DIR_SHIFT);
1428  	/* Audio Format */
1429  	dma->dma_ctrl =
1430  	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1431  	/* Write into hardware */
1432  	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1433  }
1434  
vortex_wtdma_bufshift(vortex_t * vortex,int wtdma)1435  static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1436  {
1437  	stream_t *dma = &vortex->dma_wt[wtdma];
1438  	int page, p, pp, delta, i;
1439  
1440  	page =
1441  	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2))
1442  	     >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1443  	if (dma->nr_periods >= 4)
1444  		delta = (page - dma->period_real) & 3;
1445  	else {
1446  		delta = (page - dma->period_real);
1447  		if (delta < 0)
1448  			delta += dma->nr_periods;
1449  	}
1450  	if (delta == 0)
1451  		return 0;
1452  
1453  	/* refresh hw page table */
1454  	if (dma->nr_periods > 4) {
1455  		for (i = 0; i < delta; i++) {
1456  			/* p: audio buffer page index */
1457  			p = dma->period_virt + i + 4;
1458  			if (p >= dma->nr_periods)
1459  				p -= dma->nr_periods;
1460  			/* pp: hardware DMA page index. */
1461  			pp = dma->period_real + i;
1462  			if (pp >= 4)
1463  				pp -= 4;
1464  			hwwrite(vortex->mmio,
1465  				VORTEX_WTDMA_BUFBASE +
1466  				(((wtdma << 2) + pp) << 2),
1467  				snd_pcm_sgbuf_get_addr(dma->substream,
1468  						       dma->period_bytes * p));
1469  			/* Force write thru cache. */
1470  			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1471  			       (((wtdma << 2) + pp) << 2));
1472  		}
1473  	}
1474  	dma->period_virt += delta;
1475  	if (dma->period_virt >= dma->nr_periods)
1476  		dma->period_virt -= dma->nr_periods;
1477  	dma->period_real = page;
1478  
1479  	if (delta != 1)
1480  		dev_warn(vortex->card->dev, "wt virt = %d, delta = %d\n",
1481  			 dma->period_virt, delta);
1482  
1483  	return delta;
1484  }
1485  
1486  #if 0
1487  static void
1488  vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1489  {
1490  	int temp;
1491  	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1492  	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1493  	*pos = temp & POS_MASK;
1494  }
1495  
1496  static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1497  {
1498  	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1499  		 POS_SHIFT) & POS_MASK);
1500  }
1501  #endif
vortex_wtdma_getlinearpos(vortex_t * vortex,int wtdma)1502  static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1503  {
1504  	stream_t *dma = &vortex->dma_wt[wtdma];
1505  	int temp;
1506  
1507  	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1508  	temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
1509  	return temp;
1510  }
1511  
vortex_wtdma_startfifo(vortex_t * vortex,int wtdma)1512  static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1513  {
1514  	stream_t *dma = &vortex->dma_wt[wtdma];
1515  	int this_8 = 0, this_4 = 0;
1516  
1517  	switch (dma->fifo_status) {
1518  	case FIFO_START:
1519  		vortex_fifo_setwtvalid(vortex, wtdma,
1520  				       dma->fifo_enabled ? 1 : 0);
1521  		break;
1522  	case FIFO_STOP:
1523  		this_8 = 1;
1524  		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1525  			dma->dma_ctrl);
1526  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1527  				      this_4, this_8,
1528  				      dma->fifo_enabled ? 1 : 0, 0);
1529  		break;
1530  	case FIFO_PAUSE:
1531  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1532  				      this_4, this_8,
1533  				      dma->fifo_enabled ? 1 : 0, 0);
1534  		break;
1535  	}
1536  	dma->fifo_status = FIFO_START;
1537  }
1538  
vortex_wtdma_resumefifo(vortex_t * vortex,int wtdma)1539  static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1540  {
1541  	stream_t *dma = &vortex->dma_wt[wtdma];
1542  
1543  	int this_8 = 0, this_4 = 0;
1544  	switch (dma->fifo_status) {
1545  	case FIFO_STOP:
1546  		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1547  			dma->dma_ctrl);
1548  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1549  				      this_4, this_8,
1550  				      dma->fifo_enabled ? 1 : 0, 0);
1551  		break;
1552  	case FIFO_PAUSE:
1553  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1554  				      this_4, this_8,
1555  				      dma->fifo_enabled ? 1 : 0, 0);
1556  		break;
1557  	}
1558  	dma->fifo_status = FIFO_START;
1559  }
1560  
vortex_wtdma_pausefifo(vortex_t * vortex,int wtdma)1561  static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1562  {
1563  	stream_t *dma = &vortex->dma_wt[wtdma];
1564  
1565  	int this_8 = 0, this_4 = 0;
1566  	switch (dma->fifo_status) {
1567  	case FIFO_START:
1568  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1569  				      this_4, this_8, 0, 0);
1570  		break;
1571  	case FIFO_STOP:
1572  		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1573  			dma->dma_ctrl);
1574  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1575  				      this_4, this_8, 0, 0);
1576  		break;
1577  	}
1578  	dma->fifo_status = FIFO_PAUSE;
1579  }
1580  
vortex_wtdma_stopfifo(vortex_t * vortex,int wtdma)1581  static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1582  {
1583  	stream_t *dma = &vortex->dma_wt[wtdma];
1584  
1585  	int this_4 = 0, this_8 = 0;
1586  	if (dma->fifo_status == FIFO_START)
1587  		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1588  				      this_4, this_8, 0, 0);
1589  	else if (dma->fifo_status == FIFO_STOP)
1590  		return;
1591  	dma->fifo_status = FIFO_STOP;
1592  	dma->fifo_enabled = 0;
1593  }
1594  
1595  #endif
1596  /* ADB Routes */
1597  
1598  typedef int ADBRamLink;
vortex_adb_init(vortex_t * vortex)1599  static void vortex_adb_init(vortex_t * vortex)
1600  {
1601  	int i;
1602  	/* it looks like we are writing more than we need to...
1603  	 * if we write what we are supposed to it breaks things... */
1604  	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1605  	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1606  		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1607  			hwread(vortex->mmio,
1608  			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1609  	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1610  		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1611  			hwread(vortex->mmio,
1612  			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1613  	}
1614  }
1615  
vortex_adb_en_sr(vortex_t * vortex,int channel)1616  static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1617  {
1618  	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1619  		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1620  }
1621  
vortex_adb_dis_sr(vortex_t * vortex,int channel)1622  static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1623  {
1624  	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1625  		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1626  }
1627  
1628  static void
vortex_adb_addroutes(vortex_t * vortex,unsigned char channel,ADBRamLink * route,int rnum)1629  vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1630  		     ADBRamLink * route, int rnum)
1631  {
1632  	int temp, prev, lifeboat = 0;
1633  
1634  	if ((rnum <= 0) || (route == NULL))
1635  		return;
1636  	/* Write last routes. */
1637  	rnum--;
1638  	hwwrite(vortex->mmio,
1639  		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1640  		ROUTE_MASK);
1641  	while (rnum > 0) {
1642  		hwwrite(vortex->mmio,
1643  			VORTEX_ADB_RTBASE +
1644  			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1645  		rnum--;
1646  	}
1647  	/* Write first route. */
1648  	temp =
1649  	    hwread(vortex->mmio,
1650  		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1651  	if (temp == ADB_MASK) {
1652  		/* First entry on this channel. */
1653  		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1654  			route[0]);
1655  		vortex_adb_en_sr(vortex, channel);
1656  		return;
1657  	}
1658  	/* Not first entry on this channel. Need to link. */
1659  	do {
1660  		prev = temp;
1661  		temp =
1662  		    hwread(vortex->mmio,
1663  			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1664  		if ((lifeboat++) > ADB_MASK) {
1665  			dev_err(vortex->card->dev,
1666  				"vortex_adb_addroutes: unending route! 0x%x\n",
1667  				*route);
1668  			return;
1669  		}
1670  	}
1671  	while (temp != ADB_MASK);
1672  	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1673  }
1674  
1675  static void
vortex_adb_delroutes(vortex_t * vortex,unsigned char channel,ADBRamLink route0,ADBRamLink route1)1676  vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1677  		     ADBRamLink route0, ADBRamLink route1)
1678  {
1679  	int temp, lifeboat = 0, prev;
1680  
1681  	/* Find route. */
1682  	temp =
1683  	    hwread(vortex->mmio,
1684  		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1685  	if (temp == (route0 & ADB_MASK)) {
1686  		temp =
1687  		    hwread(vortex->mmio,
1688  			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1689  		if ((temp & ADB_MASK) == ADB_MASK)
1690  			vortex_adb_dis_sr(vortex, channel);
1691  		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1692  			temp);
1693  		return;
1694  	}
1695  	do {
1696  		prev = temp;
1697  		temp =
1698  		    hwread(vortex->mmio,
1699  			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1700  		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1701  			dev_err(vortex->card->dev,
1702  				"vortex_adb_delroutes: route not found! 0x%x\n",
1703  				route0);
1704  			return;
1705  		}
1706  	}
1707  	while (temp != (route0 & ADB_MASK));
1708  	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1709  	if ((temp & ADB_MASK) == route1)
1710  		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1711  	/* Make bridge over deleted route. */
1712  	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1713  }
1714  
1715  static void
vortex_route(vortex_t * vortex,int en,unsigned char channel,unsigned char source,unsigned char dest)1716  vortex_route(vortex_t * vortex, int en, unsigned char channel,
1717  	     unsigned char source, unsigned char dest)
1718  {
1719  	ADBRamLink route;
1720  
1721  	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1722  	if (en) {
1723  		vortex_adb_addroutes(vortex, channel, &route, 1);
1724  		if ((source < (OFFSET_SRCOUT + NR_SRC))
1725  		    && (source >= OFFSET_SRCOUT))
1726  			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1727  					  channel);
1728  		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1729  			 && (source >= OFFSET_MIXOUT))
1730  			vortex_mixer_addWTD(vortex,
1731  					    (source - OFFSET_MIXOUT), channel);
1732  	} else {
1733  		vortex_adb_delroutes(vortex, channel, route, route);
1734  		if ((source < (OFFSET_SRCOUT + NR_SRC))
1735  		    && (source >= OFFSET_SRCOUT))
1736  			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1737  					  channel);
1738  		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1739  			 && (source >= OFFSET_MIXOUT))
1740  			vortex_mixer_delWTD(vortex,
1741  					    (source - OFFSET_MIXOUT), channel);
1742  	}
1743  }
1744  
1745  #if 0
1746  static void
1747  vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1748  	      unsigned char source, unsigned char dest0, unsigned char dest1)
1749  {
1750  	ADBRamLink route[2];
1751  
1752  	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1753  	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1754  
1755  	if (en) {
1756  		vortex_adb_addroutes(vortex, channel, route, 2);
1757  		if ((source < (OFFSET_SRCOUT + NR_SRC))
1758  		    && (source >= (OFFSET_SRCOUT)))
1759  			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1760  					  channel);
1761  		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1762  			 && (source >= (OFFSET_MIXOUT)))
1763  			vortex_mixer_addWTD(vortex,
1764  					    (source - OFFSET_MIXOUT), channel);
1765  	} else {
1766  		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1767  		if ((source < (OFFSET_SRCOUT + NR_SRC))
1768  		    && (source >= (OFFSET_SRCOUT)))
1769  			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1770  					  channel);
1771  		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1772  			 && (source >= (OFFSET_MIXOUT)))
1773  			vortex_mixer_delWTD(vortex,
1774  					    (source - OFFSET_MIXOUT), channel);
1775  	}
1776  }
1777  
1778  #endif
1779  /* Route two sources to same target. Sources must be of same class !!! */
1780  static void
vortex_routeLRT(vortex_t * vortex,int en,unsigned char ch,unsigned char source0,unsigned char source1,unsigned char dest)1781  vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1782  		unsigned char source0, unsigned char source1,
1783  		unsigned char dest)
1784  {
1785  	ADBRamLink route[2];
1786  
1787  	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1788  	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1789  
1790  	if (dest < 0x10)
1791  		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1792  
1793  	if (en) {
1794  		vortex_adb_addroutes(vortex, ch, route, 2);
1795  		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1796  		    && (source0 >= OFFSET_SRCOUT)) {
1797  			vortex_src_addWTD(vortex,
1798  					  (source0 - OFFSET_SRCOUT), ch);
1799  			vortex_src_addWTD(vortex,
1800  					  (source1 - OFFSET_SRCOUT), ch);
1801  		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1802  			   && (source0 >= OFFSET_MIXOUT)) {
1803  			vortex_mixer_addWTD(vortex,
1804  					    (source0 - OFFSET_MIXOUT), ch);
1805  			vortex_mixer_addWTD(vortex,
1806  					    (source1 - OFFSET_MIXOUT), ch);
1807  		}
1808  	} else {
1809  		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1810  		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1811  		    && (source0 >= OFFSET_SRCOUT)) {
1812  			vortex_src_delWTD(vortex,
1813  					  (source0 - OFFSET_SRCOUT), ch);
1814  			vortex_src_delWTD(vortex,
1815  					  (source1 - OFFSET_SRCOUT), ch);
1816  		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1817  			   && (source0 >= OFFSET_MIXOUT)) {
1818  			vortex_mixer_delWTD(vortex,
1819  					    (source0 - OFFSET_MIXOUT), ch);
1820  			vortex_mixer_delWTD(vortex,
1821  					    (source1 - OFFSET_MIXOUT), ch);
1822  		}
1823  	}
1824  }
1825  
1826  /* Connection stuff */
1827  
1828  // Connect adbdma to src('s).
1829  static void
vortex_connection_adbdma_src(vortex_t * vortex,int en,unsigned char ch,unsigned char adbdma,unsigned char src)1830  vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1831  			     unsigned char adbdma, unsigned char src)
1832  {
1833  	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1834  }
1835  
1836  // Connect SRC to mixin.
1837  static void
vortex_connection_src_mixin(vortex_t * vortex,int en,unsigned char channel,unsigned char src,unsigned char mixin)1838  vortex_connection_src_mixin(vortex_t * vortex, int en,
1839  			    unsigned char channel, unsigned char src,
1840  			    unsigned char mixin)
1841  {
1842  	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1843  }
1844  
1845  // Connect mixin with mix output.
1846  static void
vortex_connection_mixin_mix(vortex_t * vortex,int en,unsigned char mixin,unsigned char mix,int a)1847  vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1848  			    unsigned char mix, int a)
1849  {
1850  	if (en) {
1851  		vortex_mix_enableinput(vortex, mix, mixin);
1852  		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1853  	} else
1854  		vortex_mix_disableinput(vortex, mix, mixin, a);
1855  }
1856  
1857  // Connect absolut address to mixin.
1858  static void
vortex_connection_adb_mixin(vortex_t * vortex,int en,unsigned char channel,unsigned char source,unsigned char mixin)1859  vortex_connection_adb_mixin(vortex_t * vortex, int en,
1860  			    unsigned char channel, unsigned char source,
1861  			    unsigned char mixin)
1862  {
1863  	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1864  }
1865  
1866  static void
vortex_connection_src_adbdma(vortex_t * vortex,int en,unsigned char ch,unsigned char src,unsigned char adbdma)1867  vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1868  			     unsigned char src, unsigned char adbdma)
1869  {
1870  	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1871  }
1872  
1873  static void
vortex_connection_src_src_adbdma(vortex_t * vortex,int en,unsigned char ch,unsigned char src0,unsigned char src1,unsigned char adbdma)1874  vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1875  				 unsigned char ch, unsigned char src0,
1876  				 unsigned char src1, unsigned char adbdma)
1877  {
1878  
1879  	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1880  			ADB_DMA(adbdma));
1881  }
1882  
1883  // mix to absolut address.
1884  static void
vortex_connection_mix_adb(vortex_t * vortex,int en,unsigned char ch,unsigned char mix,unsigned char dest)1885  vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1886  			  unsigned char mix, unsigned char dest)
1887  {
1888  	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1889  	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1890  }
1891  
1892  // mixer to src.
1893  static void
vortex_connection_mix_src(vortex_t * vortex,int en,unsigned char ch,unsigned char mix,unsigned char src)1894  vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1895  			  unsigned char mix, unsigned char src)
1896  {
1897  	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1898  	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1899  }
1900  
1901  #if 0
1902  static void
1903  vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1904  				 unsigned char channel,
1905  				 unsigned char adbdma, unsigned char src0,
1906  				 unsigned char src1)
1907  {
1908  	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1909  		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1910  }
1911  
1912  // Connect two mix to AdbDma.
1913  static void
1914  vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1915  				 unsigned char ch, unsigned char mix0,
1916  				 unsigned char mix1, unsigned char adbdma)
1917  {
1918  
1919  	ADBRamLink routes[2];
1920  	routes[0] =
1921  	    (((mix0 +
1922  	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1923  	routes[1] =
1924  	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1925  								   0x20) &
1926  								  ADB_MASK);
1927  	if (en) {
1928  		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1929  		vortex_mixer_addWTD(vortex, mix0, ch);
1930  		vortex_mixer_addWTD(vortex, mix1, ch);
1931  	} else {
1932  		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1933  		vortex_mixer_delWTD(vortex, mix0, ch);
1934  		vortex_mixer_delWTD(vortex, mix1, ch);
1935  	}
1936  }
1937  #endif
1938  
1939  /* CODEC connect. */
1940  
1941  static void
vortex_connect_codecplay(vortex_t * vortex,int en,unsigned char mixers[])1942  vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1943  {
1944  #ifdef CHIP_AU8820
1945  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1946  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1947  #else
1948  #if 1
1949  	// Connect front channels through EQ.
1950  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1951  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1952  	/* Lower volume, since EQ has some gain. */
1953  	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1954  	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1955  	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1956  	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1957  
1958  	/* Check if reg 0x28 has SDAC bit set. */
1959  	if (VORTEX_IS_QUAD(vortex)) {
1960  		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1961  		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1962  					  ADB_CODECOUT(0 + 4));
1963  		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1964  					  ADB_CODECOUT(1 + 4));
1965  		/* pr_debug( "SDAC detected "); */
1966  	}
1967  #else
1968  	// Use plain direct output to codec.
1969  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1970  	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1971  #endif
1972  #endif
1973  }
1974  
1975  static void
vortex_connect_codecrec(vortex_t * vortex,int en,unsigned char mixin0,unsigned char mixin1)1976  vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1977  			unsigned char mixin1)
1978  {
1979  	/*
1980  	   Enable: 0x1, 0x1
1981  	   Channel: 0x11, 0x11
1982  	   ADB Source address: 0x48, 0x49
1983  	   Destination Asp4Topology_0x9c,0x98
1984  	 */
1985  	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1986  	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1987  }
1988  
1989  // Higher level ADB audio path (de)allocator.
1990  
1991  /* Resource manager */
1992  static const int resnum[VORTEX_RESOURCE_LAST] =
1993      { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
1994  /*
1995   Checkout/Checkin resource of given type.
1996   resmap: resource map to be used. If NULL means that we want to allocate
1997   a DMA resource (root of all other resources of a dma channel).
1998   out: Mean checkout if != 0. Else mean Checkin resource.
1999   restype: Indicates type of resource to be checked in or out.
2000  */
2001  static int
vortex_adb_checkinout(vortex_t * vortex,int resmap[],int out,int restype)2002  vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2003  {
2004  	int i, qty = resnum[restype], resinuse = 0;
2005  
2006  	if (out) {
2007  		/* Gather used resources by all streams. */
2008  		for (i = 0; i < NR_ADB; i++) {
2009  			resinuse |= vortex->dma_adb[i].resources[restype];
2010  		}
2011  		resinuse |= vortex->fixed_res[restype];
2012  		/* Find and take free resource. */
2013  		for (i = 0; i < qty; i++) {
2014  			if ((resinuse & (1 << i)) == 0) {
2015  				if (resmap != NULL)
2016  					resmap[restype] |= (1 << i);
2017  				else
2018  					vortex->dma_adb[i].resources[restype] |= (1 << i);
2019  				/*
2020  				pr_debug(
2021  				       "vortex: ResManager: type %d out %d\n",
2022  				       restype, i);
2023  				*/
2024  				return i;
2025  			}
2026  		}
2027  	} else {
2028  		if (resmap == NULL)
2029  			return -EINVAL;
2030  		/* Checkin first resource of type restype. */
2031  		for (i = 0; i < qty; i++) {
2032  			if (resmap[restype] & (1 << i)) {
2033  				resmap[restype] &= ~(1 << i);
2034  				/*
2035  				pr_debug(
2036  				       "vortex: ResManager: type %d in %d\n",
2037  				       restype, i);
2038  				*/
2039  				return i;
2040  			}
2041  		}
2042  	}
2043  	dev_err(vortex->card->dev,
2044  		"FATAL: ResManager: resource type %d exhausted.\n",
2045  		restype);
2046  	return -ENOMEM;
2047  }
2048  
2049  /* Default Connections  */
2050  
vortex_connect_default(vortex_t * vortex,int en)2051  static void vortex_connect_default(vortex_t * vortex, int en)
2052  {
2053  	// Connect AC97 codec.
2054  	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2055  				  VORTEX_RESOURCE_MIXOUT);
2056  	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2057  				  VORTEX_RESOURCE_MIXOUT);
2058  	if (VORTEX_IS_QUAD(vortex)) {
2059  		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2060  					  VORTEX_RESOURCE_MIXOUT);
2061  		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2062  					  VORTEX_RESOURCE_MIXOUT);
2063  	}
2064  	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2065  
2066  	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2067  				  VORTEX_RESOURCE_MIXIN);
2068  	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2069  				  VORTEX_RESOURCE_MIXIN);
2070  	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2071  
2072  	// Connect SPDIF
2073  #ifndef CHIP_AU8820
2074  	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2075  				  VORTEX_RESOURCE_MIXOUT);
2076  	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2077  				  VORTEX_RESOURCE_MIXOUT);
2078  	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2079  				  ADB_SPDIFOUT(0));
2080  	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2081  				  ADB_SPDIFOUT(1));
2082  #endif
2083  	// Connect WT
2084  #ifndef CHIP_AU8810
2085  	vortex_wt_connect(vortex, en);
2086  #endif
2087  	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2088  #ifndef CHIP_AU8820
2089  	vortex_Vort3D_connect(vortex, en);
2090  #endif
2091  	// Connect I2S
2092  
2093  	// Connect DSP interface for SQ3500 turbo (not here i think...)
2094  
2095  	// Connect AC98 modem codec
2096  
2097  }
2098  
2099  /*
2100    Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2101    are deallocated.
2102    dma: DMA engine routes to be deallocated when dma >= 0.
2103    nr_ch: Number of channels to be de/allocated.
2104    dir: direction of stream. Uses same values as substream->stream.
2105    type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2106    Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2107  */
2108  static int
vortex_adb_allocroute(vortex_t * vortex,int dma,int nr_ch,int dir,int type,int subdev)2109  vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
2110  			int type, int subdev)
2111  {
2112  	stream_t *stream;
2113  	int i, en;
2114  	struct pcm_vol *p;
2115  
2116  	if (dma >= 0) {
2117  		en = 0;
2118  		vortex_adb_checkinout(vortex,
2119  				      vortex->dma_adb[dma].resources, en,
2120  				      VORTEX_RESOURCE_DMA);
2121  	} else {
2122  		en = 1;
2123  		dma = vortex_adb_checkinout(vortex, NULL, en,
2124  					    VORTEX_RESOURCE_DMA);
2125  		if (dma < 0)
2126  			return -EBUSY;
2127  	}
2128  
2129  	stream = &vortex->dma_adb[dma];
2130  	stream->dma = dma;
2131  	stream->dir = dir;
2132  	stream->type = type;
2133  
2134  	/* PLAYBACK ROUTES. */
2135  	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2136  		int src[4], mix[4], ch_top;
2137  #ifndef CHIP_AU8820
2138  		int a3d = 0;
2139  #endif
2140  		/* Get SRC and MIXER hardware resources. */
2141  		if (stream->type != VORTEX_PCM_SPDIF) {
2142  			for (i = 0; i < nr_ch; i++) {
2143  				src[i] = vortex_adb_checkinout(vortex,
2144  							       stream->resources, en,
2145  							       VORTEX_RESOURCE_SRC);
2146  				if (src[i] < 0) {
2147  					memset(stream->resources, 0,
2148  					       sizeof(stream->resources));
2149  					return -EBUSY;
2150  				}
2151  				if (stream->type != VORTEX_PCM_A3D) {
2152  					mix[i] = vortex_adb_checkinout(vortex,
2153  								       stream->resources,
2154  								       en,
2155  								       VORTEX_RESOURCE_MIXIN);
2156  					if (mix[i] < 0) {
2157  						memset(stream->resources,
2158  						       0,
2159  						       sizeof(stream->resources));
2160  						return -EBUSY;
2161  					}
2162  				}
2163  			}
2164  		}
2165  #ifndef CHIP_AU8820
2166  		if (stream->type == VORTEX_PCM_A3D) {
2167  			a3d = vortex_adb_checkinout(vortex,
2168  						    stream->resources, en,
2169  						    VORTEX_RESOURCE_A3D);
2170  			if (a3d < 0) {
2171  				memset(stream->resources, 0,
2172  				       sizeof(stream->resources));
2173  				dev_err(vortex->card->dev,
2174  					"out of A3D sources. Sorry\n");
2175  				return -EBUSY;
2176  			}
2177  			/* (De)Initialize A3D hardware source. */
2178  			vortex_Vort3D_InitializeSource(&vortex->a3d[a3d], en,
2179  						       vortex);
2180  		}
2181  		/* Make SPDIF out exclusive to "spdif" device when in use. */
2182  		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2183  			vortex_route(vortex, 0, 0x14,
2184  				     ADB_MIXOUT(vortex->mixspdif[0]),
2185  				     ADB_SPDIFOUT(0));
2186  			vortex_route(vortex, 0, 0x14,
2187  				     ADB_MIXOUT(vortex->mixspdif[1]),
2188  				     ADB_SPDIFOUT(1));
2189  		}
2190  #endif
2191  		/* Make playback routes. */
2192  		for (i = 0; i < nr_ch; i++) {
2193  			if (stream->type == VORTEX_PCM_ADB) {
2194  				vortex_connection_adbdma_src(vortex, en,
2195  							     src[nr_ch - 1],
2196  							     dma,
2197  							     src[i]);
2198  				vortex_connection_src_mixin(vortex, en,
2199  							    0x11, src[i],
2200  							    mix[i]);
2201  				vortex_connection_mixin_mix(vortex, en,
2202  							    mix[i],
2203  							    MIX_PLAYB(i), 0);
2204  #ifndef CHIP_AU8820
2205  				vortex_connection_mixin_mix(vortex, en,
2206  							    mix[i],
2207  							    MIX_SPDIF(i % 2), 0);
2208  				vortex_mix_setinputvolumebyte(vortex,
2209  							      MIX_SPDIF(i % 2),
2210  							      mix[i],
2211  							      MIX_DEFIGAIN);
2212  #endif
2213  			}
2214  #ifndef CHIP_AU8820
2215  			if (stream->type == VORTEX_PCM_A3D) {
2216  				vortex_connection_adbdma_src(vortex, en,
2217  							     src[nr_ch - 1],
2218  								 dma,
2219  							     src[i]);
2220  				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2221  				/* XTalk test. */
2222  				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2223  				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2224  			}
2225  			if (stream->type == VORTEX_PCM_SPDIF)
2226  				vortex_route(vortex, en, 0x14,
2227  					     ADB_DMA(stream->dma),
2228  					     ADB_SPDIFOUT(i));
2229  #endif
2230  		}
2231  		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2232  			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2233  			for (i = nr_ch; i < ch_top; i++) {
2234  				vortex_connection_mixin_mix(vortex, en,
2235  							    mix[i % nr_ch],
2236  							    MIX_PLAYB(i), 0);
2237  #ifndef CHIP_AU8820
2238  				vortex_connection_mixin_mix(vortex, en,
2239  							    mix[i % nr_ch],
2240  							    MIX_SPDIF(i % 2),
2241  								0);
2242  				vortex_mix_setinputvolumebyte(vortex,
2243  							      MIX_SPDIF(i % 2),
2244  							      mix[i % nr_ch],
2245  							      MIX_DEFIGAIN);
2246  #endif
2247  			}
2248  			if (stream->type == VORTEX_PCM_ADB && en) {
2249  				p = &vortex->pcm_vol[subdev];
2250  				p->dma = dma;
2251  				for (i = 0; i < nr_ch; i++)
2252  					p->mixin[i] = mix[i];
2253  				for (i = 0; i < ch_top; i++)
2254  					p->vol[i] = 0;
2255  			}
2256  		}
2257  #ifndef CHIP_AU8820
2258  		else {
2259  			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2260  				vortex_route(vortex, en, 0x14,
2261  					     ADB_DMA(stream->dma),
2262  					     ADB_SPDIFOUT(1));
2263  		}
2264  		/* Reconnect SPDIF out when "spdif" device is down. */
2265  		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2266  			vortex_route(vortex, 1, 0x14,
2267  				     ADB_MIXOUT(vortex->mixspdif[0]),
2268  				     ADB_SPDIFOUT(0));
2269  			vortex_route(vortex, 1, 0x14,
2270  				     ADB_MIXOUT(vortex->mixspdif[1]),
2271  				     ADB_SPDIFOUT(1));
2272  		}
2273  #endif
2274  	/* CAPTURE ROUTES. */
2275  	} else {
2276  		int src[2], mix[2];
2277  
2278  		if (nr_ch < 1)
2279  			return -EINVAL;
2280  
2281  		/* Get SRC and MIXER hardware resources. */
2282  		for (i = 0; i < nr_ch; i++) {
2283  			mix[i] = vortex_adb_checkinout(vortex,
2284  						       stream->resources, en,
2285  						       VORTEX_RESOURCE_MIXOUT);
2286  			if (mix[i] < 0) {
2287  				memset(stream->resources, 0,
2288  				       sizeof(stream->resources));
2289  				return -EBUSY;
2290  			}
2291  			src[i] = vortex_adb_checkinout(vortex,
2292  						       stream->resources, en,
2293  						       VORTEX_RESOURCE_SRC);
2294  			if (src[i] < 0) {
2295  				memset(stream->resources, 0,
2296  				       sizeof(stream->resources));
2297  				return -EBUSY;
2298  			}
2299  		}
2300  
2301  		/* Make capture routes. */
2302  		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2303  		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2304  		if (nr_ch == 1) {
2305  			vortex_connection_mixin_mix(vortex, en,
2306  						    MIX_CAPT(1), mix[0], 0);
2307  			vortex_connection_src_adbdma(vortex, en,
2308  						     src[0],
2309  						     src[0], dma);
2310  		} else {
2311  			vortex_connection_mixin_mix(vortex, en,
2312  						    MIX_CAPT(1), mix[1], 0);
2313  			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2314  						  src[1]);
2315  			vortex_connection_src_src_adbdma(vortex, en,
2316  							 src[1], src[0],
2317  							 src[1], dma);
2318  		}
2319  	}
2320  	vortex->dma_adb[dma].nr_ch = nr_ch;
2321  
2322  #if 0
2323  	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2324  	if (nr_ch < 4) {
2325  		/* Copy stereo to rear channel (surround) */
2326  		snd_ac97_write_cache(vortex->codec,
2327  				     AC97_SIGMATEL_DAC2INVERT,
2328  				     snd_ac97_read(vortex->codec,
2329  						   AC97_SIGMATEL_DAC2INVERT)
2330  				     | 4);
2331  	} else {
2332  		/* Allow separate front and rear channels. */
2333  		snd_ac97_write_cache(vortex->codec,
2334  				     AC97_SIGMATEL_DAC2INVERT,
2335  				     snd_ac97_read(vortex->codec,
2336  						   AC97_SIGMATEL_DAC2INVERT)
2337  				     & ~((u32)
2338  					 4));
2339  	}
2340  #endif
2341  	return dma;
2342  }
2343  
2344  /*
2345   Set the SampleRate of the SRC's attached to the given DMA engine.
2346   */
2347  static void
vortex_adb_setsrc(vortex_t * vortex,int adbdma,unsigned int rate,int dir)2348  vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2349  {
2350  	stream_t *stream = &(vortex->dma_adb[adbdma]);
2351  	int i, cvrt;
2352  
2353  	/* dir=1:play ; dir=0:rec */
2354  	if (dir)
2355  		cvrt = SRC_RATIO(rate, 48000);
2356  	else
2357  		cvrt = SRC_RATIO(48000, rate);
2358  
2359  	/* Setup SRC's */
2360  	for (i = 0; i < NR_SRC; i++) {
2361  		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2362  			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2363  	}
2364  }
2365  
2366  // Timer and ISR functions.
2367  
vortex_settimer(vortex_t * vortex,int period)2368  static void vortex_settimer(vortex_t * vortex, int period)
2369  {
2370  	//set the timer period to <period> 48000ths of a second.
2371  	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2372  }
2373  
2374  #if 0
2375  static void vortex_enable_timer_int(vortex_t * card)
2376  {
2377  	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2378  		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2379  }
2380  
2381  static void vortex_disable_timer_int(vortex_t * card)
2382  {
2383  	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2384  		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2385  }
2386  
2387  #endif
vortex_enable_int(vortex_t * card)2388  static void vortex_enable_int(vortex_t * card)
2389  {
2390  	// CAsp4ISR__EnableVortexInt_void_
2391  	hwwrite(card->mmio, VORTEX_CTRL,
2392  		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2393  	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2394  		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2395  }
2396  
vortex_disable_int(vortex_t * card)2397  static void vortex_disable_int(vortex_t * card)
2398  {
2399  	hwwrite(card->mmio, VORTEX_CTRL,
2400  		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2401  }
2402  
vortex_interrupt(int irq,void * dev_id)2403  static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2404  {
2405  	vortex_t *vortex = dev_id;
2406  	int i, handled;
2407  	u32 source;
2408  
2409  	//check if the interrupt is ours.
2410  	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2411  		return IRQ_NONE;
2412  
2413  	// This is the Interrupt Enable flag we set before (consistency check).
2414  	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2415  		return IRQ_NONE;
2416  
2417  	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2418  	// Reset IRQ flags.
2419  	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2420  	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2421  	// Is at least one IRQ flag set?
2422  	if (source == 0) {
2423  		dev_err(vortex->card->dev, "missing irq source\n");
2424  		return IRQ_NONE;
2425  	}
2426  
2427  	handled = 0;
2428  	// Attend every interrupt source.
2429  	if (unlikely(source & IRQ_ERR_MASK)) {
2430  		if (source & IRQ_FATAL) {
2431  			dev_err(vortex->card->dev, "IRQ fatal error\n");
2432  		}
2433  		if (source & IRQ_PARITY) {
2434  			dev_err(vortex->card->dev, "IRQ parity error\n");
2435  		}
2436  		if (source & IRQ_REG) {
2437  			dev_err(vortex->card->dev, "IRQ reg error\n");
2438  		}
2439  		if (source & IRQ_FIFO) {
2440  			dev_err(vortex->card->dev, "IRQ fifo error\n");
2441  		}
2442  		if (source & IRQ_DMA) {
2443  			dev_err(vortex->card->dev, "IRQ dma error\n");
2444  		}
2445  		handled = 1;
2446  	}
2447  	if (source & IRQ_PCMOUT) {
2448  		/* ALSA period acknowledge. */
2449  		spin_lock(&vortex->lock);
2450  		for (i = 0; i < NR_ADB; i++) {
2451  			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2452  				if (!vortex_adbdma_bufshift(vortex, i))
2453  					continue;
2454  				spin_unlock(&vortex->lock);
2455  				snd_pcm_period_elapsed(vortex->dma_adb[i].
2456  						       substream);
2457  				spin_lock(&vortex->lock);
2458  			}
2459  		}
2460  #ifndef CHIP_AU8810
2461  		for (i = 0; i < NR_WT; i++) {
2462  			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2463  				/* FIXME: we ignore the return value from
2464  				 * vortex_wtdma_bufshift() below as the delta
2465  				 * calculation seems not working for wavetable
2466  				 * by some reason
2467  				 */
2468  				vortex_wtdma_bufshift(vortex, i);
2469  				spin_unlock(&vortex->lock);
2470  				snd_pcm_period_elapsed(vortex->dma_wt[i].
2471  						       substream);
2472  				spin_lock(&vortex->lock);
2473  			}
2474  		}
2475  #endif
2476  		spin_unlock(&vortex->lock);
2477  		handled = 1;
2478  	}
2479  	//Acknowledge the Timer interrupt
2480  	if (source & IRQ_TIMER) {
2481  		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2482  		handled = 1;
2483  	}
2484  	if ((source & IRQ_MIDI) && vortex->rmidi) {
2485  		snd_mpu401_uart_interrupt(vortex->irq,
2486  					  vortex->rmidi->private_data);
2487  		handled = 1;
2488  	}
2489  
2490  	if (!handled) {
2491  		dev_err(vortex->card->dev, "unknown irq source %x\n", source);
2492  	}
2493  	return IRQ_RETVAL(handled);
2494  }
2495  
2496  /* Codec */
2497  
2498  #define POLL_COUNT 1000
vortex_codec_init(vortex_t * vortex)2499  static void vortex_codec_init(vortex_t * vortex)
2500  {
2501  	int i;
2502  
2503  	for (i = 0; i < 32; i++) {
2504  		/* the windows driver writes -i, so we write -i */
2505  		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2506  		msleep(2);
2507  	}
2508  	if (0) {
2509  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2510  		msleep(1);
2511  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2512  		msleep(1);
2513  	} else {
2514  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2515  		msleep(2);
2516  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2517  		msleep(2);
2518  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2519  		msleep(2);
2520  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2521  		msleep(2);
2522  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2523  		msleep(2);
2524  		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2525  	}
2526  	for (i = 0; i < 32; i++) {
2527  		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2528  		msleep(5);
2529  	}
2530  	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2531  	msleep(1);
2532  	/* Enable codec channels 0 and 1. */
2533  	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2534  		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2535  }
2536  
2537  static void
vortex_codec_write(struct snd_ac97 * codec,unsigned short addr,unsigned short data)2538  vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2539  {
2540  
2541  	vortex_t *card = (vortex_t *) codec->private_data;
2542  	unsigned int lifeboat = 0;
2543  
2544  	/* wait for transactions to clear */
2545  	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2546  		udelay(100);
2547  		if (lifeboat++ > POLL_COUNT) {
2548  			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2549  			return;
2550  		}
2551  	}
2552  	/* write register */
2553  	hwwrite(card->mmio, VORTEX_CODEC_IO,
2554  		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2555  		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2556  		VORTEX_CODEC_WRITE |
2557  		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2558  
2559  	/* Flush Caches. */
2560  	hwread(card->mmio, VORTEX_CODEC_IO);
2561  }
2562  
vortex_codec_read(struct snd_ac97 * codec,unsigned short addr)2563  static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2564  {
2565  
2566  	vortex_t *card = (vortex_t *) codec->private_data;
2567  	u32 read_addr, data;
2568  	unsigned lifeboat = 0;
2569  
2570  	/* wait for transactions to clear */
2571  	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2572  		udelay(100);
2573  		if (lifeboat++ > POLL_COUNT) {
2574  			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2575  			return 0xffff;
2576  		}
2577  	}
2578  	/* set up read address */
2579  	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2580  		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2581  	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2582  
2583  	/* wait for address */
2584  	do {
2585  		udelay(100);
2586  		data = hwread(card->mmio, VORTEX_CODEC_IO);
2587  		if (lifeboat++ > POLL_COUNT) {
2588  			dev_err(card->card->dev,
2589  				"ac97 address never arrived\n");
2590  			return 0xffff;
2591  		}
2592  	} while ((data & VORTEX_CODEC_ADDMASK) !=
2593  		 (addr << VORTEX_CODEC_ADDSHIFT));
2594  
2595  	/* return data. */
2596  	return (u16) (data & VORTEX_CODEC_DATMASK);
2597  }
2598  
2599  /* SPDIF support  */
2600  
vortex_spdif_init(vortex_t * vortex,int spdif_sr,int spdif_mode)2601  static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2602  {
2603  	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2604  
2605  	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2606  	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2607  		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2608  	//for (i=0x291D4; i<0x29200; i+=4)
2609  	for (i = 0; i < 11; i++)
2610  		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2611  	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2612  	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2613  		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2614  
2615  	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2616  	if (this_04 && this_08) {
2617  		int edi;
2618  
2619  		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2620  		if (i > 0x800) {
2621  			if (i < 0x1ffff)
2622  				edi = (i >> 1);
2623  			else
2624  				edi = 0x1ffff;
2625  		} else {
2626  			edi = 0x800;
2627  		}
2628  		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2629  		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2630  					this_0c, 1, 0, edi, 1);
2631  		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2632  					this_0c, 1, 0, edi, 1);
2633  	}
2634  
2635  	i = spdif_sr;
2636  	spdif_sr |= 0x8c;
2637  	switch (i) {
2638  	case 32000:
2639  		this_38 &= 0xFFFFFFFE;
2640  		this_38 &= 0xFFFFFFFD;
2641  		this_38 &= 0xF3FFFFFF;
2642  		this_38 |= 0x03000000;	/* set 32khz samplerate */
2643  		this_38 &= 0xFFFFFF3F;
2644  		spdif_sr &= 0xFFFFFFFD;
2645  		spdif_sr |= 1;
2646  		break;
2647  	case 44100:
2648  		this_38 &= 0xFFFFFFFE;
2649  		this_38 &= 0xFFFFFFFD;
2650  		this_38 &= 0xF0FFFFFF;
2651  		this_38 |= 0x03000000;
2652  		this_38 &= 0xFFFFFF3F;
2653  		spdif_sr &= 0xFFFFFFFC;
2654  		break;
2655  	case 48000:
2656  		if (spdif_mode == 1) {
2657  			this_38 &= 0xFFFFFFFE;
2658  			this_38 &= 0xFFFFFFFD;
2659  			this_38 &= 0xF2FFFFFF;
2660  			this_38 |= 0x02000000;	/* set 48khz samplerate */
2661  			this_38 &= 0xFFFFFF3F;
2662  		} else {
2663  			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2664  			this_38 |= 0x00000003;
2665  			this_38 &= 0xFFFFFFBF;
2666  			this_38 |= 0x80;
2667  		}
2668  		spdif_sr |= 2;
2669  		spdif_sr &= 0xFFFFFFFE;
2670  		break;
2671  
2672  	}
2673  	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2674  	   registers. seems to be for the standard IEC/SPDIF initialization
2675  	   stuff */
2676  	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2677  	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2678  	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2679  }
2680  
2681  /* Initialization */
2682  
vortex_core_init(vortex_t * vortex)2683  static int vortex_core_init(vortex_t *vortex)
2684  {
2685  
2686  	dev_info(vortex->card->dev, "init started\n");
2687  	/* Hardware Init. */
2688  	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2689  	msleep(5);
2690  	hwwrite(vortex->mmio, VORTEX_CTRL,
2691  		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2692  	msleep(5);
2693  	/* Reset IRQ flags */
2694  	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2695  	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2696  
2697  	vortex_codec_init(vortex);
2698  
2699  #ifdef CHIP_AU8830
2700  	hwwrite(vortex->mmio, VORTEX_CTRL,
2701  		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2702  #endif
2703  
2704  	/* Init audio engine. */
2705  	vortex_adbdma_init(vortex);
2706  	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2707  	vortex_adb_init(vortex);
2708  	/* Init processing blocks. */
2709  	vortex_fifo_init(vortex);
2710  	vortex_mixer_init(vortex);
2711  	vortex_srcblock_init(vortex);
2712  #ifndef CHIP_AU8820
2713  	vortex_eq_init(vortex);
2714  	vortex_spdif_init(vortex, 48000, 1);
2715  	vortex_Vort3D_enable(vortex);
2716  #endif
2717  #ifndef CHIP_AU8810
2718  	vortex_wt_init(vortex);
2719  #endif
2720  	// Moved to au88x0.c
2721  	//vortex_connect_default(vortex, 1);
2722  
2723  	vortex_settimer(vortex, 0x90);
2724  	// Enable Interrupts.
2725  	// vortex_enable_int() must be first !!
2726  	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2727  	// vortex_enable_int(vortex);
2728  	//vortex_enable_timer_int(vortex);
2729  	//vortex_disable_timer_int(vortex);
2730  
2731  	dev_info(vortex->card->dev, "init.... done.\n");
2732  	spin_lock_init(&vortex->lock);
2733  
2734  	return 0;
2735  }
2736  
vortex_core_shutdown(vortex_t * vortex)2737  static int vortex_core_shutdown(vortex_t * vortex)
2738  {
2739  
2740  	dev_info(vortex->card->dev, "shutdown started\n");
2741  #ifndef CHIP_AU8820
2742  	vortex_eq_free(vortex);
2743  	vortex_Vort3D_disable(vortex);
2744  #endif
2745  	//vortex_disable_timer_int(vortex);
2746  	vortex_disable_int(vortex);
2747  	vortex_connect_default(vortex, 0);
2748  	/* Reset all DMA fifos. */
2749  	vortex_fifo_init(vortex);
2750  	/* Erase all audio routes. */
2751  	vortex_adb_init(vortex);
2752  
2753  	/* Disable MPU401 */
2754  	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2755  	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2756  
2757  	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2758  	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2759  	msleep(5);
2760  	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2761  
2762  	dev_info(vortex->card->dev, "shutdown.... done.\n");
2763  	return 0;
2764  }
2765  
2766  /* Alsa support. */
2767  
vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt,vortex_t * v)2768  static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v)
2769  {
2770  	int fmt;
2771  
2772  	switch (alsafmt) {
2773  	case SNDRV_PCM_FORMAT_U8:
2774  		fmt = 0x1;
2775  		break;
2776  	case SNDRV_PCM_FORMAT_MU_LAW:
2777  		fmt = 0x2;
2778  		break;
2779  	case SNDRV_PCM_FORMAT_A_LAW:
2780  		fmt = 0x3;
2781  		break;
2782  	case SNDRV_PCM_FORMAT_SPECIAL:
2783  		fmt = 0x4;	/* guess. */
2784  		break;
2785  	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2786  		fmt = 0x5;	/* guess. */
2787  		break;
2788  	case SNDRV_PCM_FORMAT_S16_LE:
2789  		fmt = 0x8;
2790  		break;
2791  	case SNDRV_PCM_FORMAT_S16_BE:
2792  		fmt = 0x9;	/* check this... */
2793  		break;
2794  	default:
2795  		fmt = 0x8;
2796  		dev_err(v->card->dev,
2797  			"format unsupported %d\n", alsafmt);
2798  		break;
2799  	}
2800  	return fmt;
2801  }
2802  
2803  /* Some not yet useful translations. */
2804  #if 0
2805  typedef enum {
2806  	ASPFMTLINEAR16 = 0,	/* 0x8 */
2807  	ASPFMTLINEAR8,		/* 0x1 */
2808  	ASPFMTULAW,		/* 0x2 */
2809  	ASPFMTALAW,		/* 0x3 */
2810  	ASPFMTSPORT,		/* ? */
2811  	ASPFMTSPDIF,		/* ? */
2812  } ASPENCODING;
2813  
2814  static int
2815  vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2816  {
2817  	int a, this_194;
2818  
2819  	if ((bits != 8) && (bits != 16))
2820  		return -1;
2821  
2822  	switch (encod) {
2823  	case 0:
2824  		if (bits == 0x10)
2825  			a = 8;	// 16 bit
2826  		break;
2827  	case 1:
2828  		if (bits == 8)
2829  			a = 1;	// 8 bit
2830  		break;
2831  	case 2:
2832  		a = 2;		// U_LAW
2833  		break;
2834  	case 3:
2835  		a = 3;		// A_LAW
2836  		break;
2837  	}
2838  	switch (nch) {
2839  	case 1:
2840  		this_194 = 0;
2841  		break;
2842  	case 2:
2843  		this_194 = 1;
2844  		break;
2845  	case 4:
2846  		this_194 = 1;
2847  		break;
2848  	case 6:
2849  		this_194 = 1;
2850  		break;
2851  	}
2852  	return (a);
2853  }
2854  
2855  static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2856  {
2857  	short int d, this_148;
2858  
2859  	d = ((bits >> 3) * nch);
2860  	this_148 = 0xbb80 / d;
2861  }
2862  #endif
2863